Toothbrush



Nov. 1, 1932. F. w. JANSSEN 1,885,024

TOOTHBRUSH Filed Sept.16. 1931 ATTO RNEYS Patented Nov. '1, 19,32

- UNITI-:D STATE-s.

mannaro: wi Jmssmr, or Damon, momen 'roo'rnnnusn Application measeptember 1s, 1931. serial ne. 563,163.'

I which ma therefore be sold so cheaply that all can we afford to throwit away after one use. A further objectIis to provide a constructionembodying a minimum number of parts which may be readily stamped out orotherwise cheaply formed, 'and may then be quickly and automaticallyassembled by simple machinery with the necessary bristles in place andfirmly held by such assembly. With the above and other ends in view, theinvention consists in the matters hereinafter set forth and moreparticularly pointed out in the appended claims, refer ence being had tothe accompanying drawing, in whichigure 1 is a side elevation of a brushembodying the invention;

Fi 2 is an end view of the head end of said rush; Fig. 3 isa top planview of Figure 1; Fig. 4 is a detail of the top or cap member of thebrush showing the same partly in lon itudinal section;

ig. 5 is a top plan view ofthe bottom or l base member;

Fig. 6 is a detail of the base member, showing the same partly in edgeelevation and partly in longitudinal section;

Fig. 7 is an enlarged view of the head end of the brush, showmg the samepartly in eleation and Ypartly in longitudinal section; an

Fizg. 8 is a transverse section through Figure As the main object of thepresent invention is to form a tooth brush of the fewest number of partsfor the purpose of cheapness of construction, and at the Sametimeprovide 'a construction in which the bristles" are firmvly held, thehead portion A and handle portion B, comprise but two parts, preferablythin stampin s formed of a paper or other easily molde or stampedcomposition, the upper or cap member 1 and the bottom or base member 2being both stamped or pressed out from a thin sheet of material, andthese two members then placed face to face, onel upon the other, andthen glued or otherwise firmly united throu hout their contactingsurfaces to form the head A for holdin the bristle tufts 3 and thehandle portion of the brush.

In order that the bristle tufts may be firmly held in the brush head,the base member'l at its head end, is formed with two parallellongitudinally extending rows lof holes 4, the holes in one row beingdirectly opposite the holes in the other row, and where each hole opensthrough the upper side ofthe basel member, it is cut laterally to form agroove 5 leading from the holes in one 4row toward the holes in theopposite row, to,` provide a `curved seat for the connecting portions 6of the bristles forming two tufts and which connecting portions extendacross from one row 4. of holes to the other row with the free ends ofthe bristles projecting through these openings and forming the two rowsof tufts 3.

The ase member 2 isa thin flat stamping having the proper outline toconform to the shape of the head portion A and to form the handle ortionB, andthe cam member 1 is also a t 'n flat stamping having an outlinecorresponding to that of the base member, but

. in the head portion of this cap, a recess or depression 7 is formed bypressing the'central portion of the head of said cap member,'up wardly,forming a recess in its lower side to receive and fit closely over theloop portions 6 of the bristle tufts, and a smooth rounded] 'upper sideover these loops the marginal rounded upper surface, the cap coveringand snugly inclosing the'loops 6 of the bristles,

securely A holding the tufts 'in place and strengthening both head andhandle portions -of the brush when glued or otherwise 'rmly securedinplace'upon the base. .The cement, glue, or other material used tosecure the cap upon the base, may also fill the recess 7 Y and thussecurely hold the loops 6 ofthe. bristles marginal portion around saidrecess tolis together and against getting out of place ilat upon theupper surface of said base in this recess in the head. member.

The brush thus comprises but two stamped In testimony whereof I aix msisgnature. or otherwiseJ formed members, outside of the FREDERICK W. JN SEN. 7o

several bristle tufts and loops, and ma be very cuickly and cheaplymanufacture so cheap y manufactured that the user may well aiford'tothrow the brush away after 1 one use, and, if found desirable, the capand 75 base members maybe formed from a paper composition which willabsorb water during useA and make thebrush unfit for use a seeond time.As the cap encloses the bristle i loops and presents a smooth roundedupper so surface, the brush may be used in the usual way withoutirritating the mouth of the user, f y Havin thus fully described myinvention, w what I c aim is':- v e5 1. AY tooth Ybrush comprising a atbase member forming a head portion and a handle y portion withaplurality of pairs of holes in said head portion, a bristle tuft assedYv through the holes of each pair and ormed o0 with a loop portion at theupper side of said base, and a cap member secured flat upon said basemember throu hout the length of said head portion thereo and formed witha .3 hollow rotuberance to receive said loop por- 95 tions o said tufts.E.

2. A tooth brush comprising a ilat base member forming a head rtion anda handle ortion anddprovided with parallel rows of cles in sai headportion, bristles assedV 100 through the holes of one row` and oopedacross to the holes of the VYother row with the end portions of saidbristles projecting from both rows of holes and forming tufts, and a ocap member forming a head portion and a n 105 lhandle portion andconforming to the outlinel of said Ybase member and secured in face icontact therewith, said head portion of said cap member being formedwith a central v 5 raised portion forming a recess in its lower 10 sideto receie said loo 's of said bristles and a marginal portion to ie flatupon said base member around said recess. i

3. A tooth brush comprising a iiat base member forming a head portionand a handle 115 portion and provided with parallel rows of oles in saidhead portion with grooves in the upper 'side thereof leading fromeach-hole m eacn row toward a hole -in the other row, .5 -bristleslooped intermediate their ends with 12 their end portions gojecting fromsaid holes and forming tu and with their loop portions lying in saidgrooves, and a cap member forming/ a handle portion and .a

'. 0 head portion vconforming in outline to the 125,

outline of said base member, the head portion of said cap member beingformedl at the central portion of its head to provide a ress at itslower side to receive said loop portions of said bristles andto providea 13 l i. I l

